2-710-783 - The Print Collector/Heritage Images

'Telephone Lorry Exchange Attached to R.A.F. Kite Balloon Section', (1919). Royal Air Force telecommunications, scene from the First World War, 1914-1919. From "The History of the Great European War: its causes and effects", Vol. X, by W. Stanley Macbean Knight. [Caxton Pulishing Company, Limited, London, 1919]